P6032: Difference between revisions

The body of the probe contains a clipping line composed of what appears to be 21 mm of RG-174 coax connected to the triode's cathode at one end  

and open at the other end. The circuit description in the manual describes it vaguely, saying only that, "The clipping line reduces signal aberration to a minimum." Page 40 of the Tektronix Probe Circuits concept book explains in more depth, "The section of 50 Ω coax tied to V1 cathode damps ringing in the high frequency response. The coax is terminated in an open circuit to reflect a short circuit 1/4 wavelength from the termination. Since voltage does not exist at a short circuit, the ringing is damped."